Moving OMAP 3530 code out of BeagleBoard package into its own package

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9854 6f19259b-4bc3-4df7-8a09-765794883524
2010-01-28 21:32:01 +00:00
parent 759f21f1d1
commit a3f98646f6
51 changed files with 7557 additions and 0 deletions
--- a/Omap35xxPkg/Library/SerialPortLib/SerialPortLib.c
+++ b/Omap35xxPkg/Library/SerialPortLib/SerialPortLib.c
@@ -0,0 +1,124 @@
+/** @file
+  Serial I/O Port library functions with no library constructor/destructor
+
+
+  Copyright (c) 2008-2009, Apple Inc. All rights reserved.
+  
+  All rights reserved. This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which accompanies this distribution.  The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <Base.h>
+#include <Library/DebugLib.h>
+#include <Library/SerialPortLib.h>
+#include <Library/PcdLib.h>
+#include <Library/IoLib.h>
+#include <Library/OmapLib.h>
+#include <Omap3530/Omap3530.h>
+
+/*
+
+  Programmed hardware of Serial port.
+
+  @return    Always return EFI_UNSUPPORTED.
+
+**/
+RETURN_STATUS
+EFIAPI
+SerialPortInitialize (
+  VOID
+  )
+{
+  // assume assembly code at reset vector has setup UART
+  return RETURN_SUCCESS;
+}
+
+/**
+  Write data to serial device.
+
+  @param  Buffer           Point of data buffer which need to be writed.
+  @param  NumberOfBytes    Number of output bytes which are cached in Buffer.
+
+  @retval 0                Write data failed.
+  @retval !0               Actual number of bytes writed to serial device.
+
+**/
+UINTN
+EFIAPI
+SerialPortWrite (
+  IN UINT8     *Buffer,
+  IN UINTN     NumberOfBytes
+)
+{
+  UINT32  LSR = UartBase(PcdGet32(PcdBeagleConsoleUart)) + UART_LSR_REG;
+  UINT32  THR = UartBase(PcdGet32(PcdBeagleConsoleUart)) + UART_THR_REG;
+  UINTN   Count;
+    
+  for (Count = 0; Count < NumberOfBytes; Count++, Buffer++) {
+    while ((MmioRead8(LSR) & UART_LSR_TX_FIFO_E_MASK) == UART_LSR_TX_FIFO_E_NOT_EMPTY);
+    MmioWrite8(THR, *Buffer);
+  }
+
+  return NumberOfBytes;
+}
+
+
+/**
+  Read data from serial device and save the datas in buffer.
+
+  @param  Buffer           Point of data buffer which need to be writed.
+  @param  NumberOfBytes    Number of output bytes which are cached in Buffer.
+
+  @retval 0                Read data failed.
+  @retval !0               Aactual number of bytes read from serial device.
+
+**/
+UINTN
+EFIAPI
+SerialPortRead (
+  OUT UINT8     *Buffer,
+  IN  UINTN     NumberOfBytes
+)
+{
+  UINT32  LSR = UartBase(PcdGet32(PcdBeagleConsoleUart)) + UART_LSR_REG;
+  UINT32  RBR = UartBase(PcdGet32(PcdBeagleConsoleUart)) + UART_RBR_REG;
+  UINTN   Count;
+    
+  for (Count = 0; Count < NumberOfBytes; Count++, Buffer++) {
+    while ((MmioRead8(LSR) & UART_LSR_RX_FIFO_E_MASK) == UART_LSR_RX_FIFO_E_EMPTY);
+    *Buffer = MmioRead8(RBR);
+  }
+
+  return NumberOfBytes;
+}
+
+
+/**
+  Check to see if any data is avaiable to be read from the debug device.
+
+  @retval EFI_SUCCESS       At least one byte of data is avaiable to be read
+  @retval EFI_NOT_READY     No data is avaiable to be read
+  @retval EFI_DEVICE_ERROR  The serial device is not functioning properly
+
+**/
+BOOLEAN
+EFIAPI
+SerialPortPoll (
+  VOID
+  )
+{
+  UINT32 LSR = UartBase(PcdGet32(PcdBeagleConsoleUart)) + UART_LSR_REG;
+
+  if ((MmioRead8(LSR) & UART_LSR_RX_FIFO_E_MASK) == UART_LSR_RX_FIFO_E_NOT_EMPTY) {
+    return TRUE;
+  } else {
+    return FALSE;
+  }
+}
+